Instruction 10-6 Two Samples Each of Size 25 Are Taken from Independent

question 49

Short Answer

Instruction 10-6
Two samples each of size 25 are taken from independent populations assumed to be normally distributed with equal variances. The first sample has a mean of 35.5 and standard deviation of 3.0 while the second sample has a mean of 33.0 and standard deviation of 4.0.
-Referring to Instruction 10-6,what is the 90% confidence interval estimate for the difference in the two means?

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Definitions:

Face Value

The nominal or dollar value printed on a securities certificate or instrument, such as a bond or stock, representing the value at issuance.

Zero-Coupon Bonds

Bonds that do not pay interest during their life but are sold at a deep discount, providing profit at maturity when redeemed for their face value.

Face Value

The nominal or dollar value printed on a bond, note, or other financial instrument, representing the amount due at maturity.

Quoted Price

The publicly stated cost or value of a stock, commodity, or financial instrument.